Which of the following tools can be used to schedule a backup operation that is to be run every Sunday evening?（） Journal。 Task Center。 Activity Monitor。 Command Line Processor。
L-O-R封堵三通中，卡环密封部分由紫铜垫和（）组成。 丝堵。 卡环。 卡环槽。 塞柄。
You executed the following command: RMAN> RECOVER COPY OF DATAFILE '/u01/app/oracle/oradata/orcl/users01.dbf'; Which statement regarding the above command is correct?（） The '/u01/app/oracle/oradata/orcl/users01.dbf' data file is recovered from the image copy。 The '/u01/app/oracle/oradata/orcl/users01.dbf' data file is recovered from the last incremental backup。 Image copies of the '/u01/app/oracle/oradata/orcl/users01.dbf' data file are updated with all changes up to incremental backup SCN. '/ u01/app/oracle/oradata/orcl/users01.dbf。 Image copies of the '/u01/app/oracle/oradata/orcl/users01.dbf' data file are recovered using the above command if data file recovery fail。
自动润滑系统堵塞排除措施
What is the likely cause of a system hanging at boot code 557?（） The system is configuring network adapters.。 The system is configuring fibre channel devices.。 The system is unable to mount the rootvg filesystems.。 The system is unable to access the installation media.。
对混凝土构件耐久性影响较大的因素有（）。
